Synthesis and properties of greenish-blue-emitting iridium dendrimers with N-phenylcarbazole-based polyether dendrons by a post-dendronization route
文献类型：期刊论文
| 作者 | Wang,Yang,Wang,Shumeng; Shao,Shiyang; Ding,Junqiao; Wang,Lixiang; Jing,Xiabin; Wang,Fosong |
| 刊名 | dalton transactions
 |
| 出版日期 | 2015 |
| 卷号 | 44期号:3页码:1052-1059 |
| 关键词 | CHARGE-TRANSPORTING DENDRONS ELECTROPHOSPHORESCENT DEVICES CARBAZOLE DENDRONS PHOSPHORESCENT OLEDS LIGHT-EMISSION BIPOLAR HOST DIODES COMPLEXES EFFICIENCY CHROMOPHORES |
| 通讯作者 | ding,jq |
| 英文摘要 | a series of solution processible greenish-blue-emitting ir dendrimers with polyether dendrons that consist of n-phenylcarbazole (npc) are developed via a convenient post-dendronization method. it involves two steps: (i) the successful preparation of a reactive ir core, namely m-ho-dfppyir, only when the hydroxyl group is located at the meta position relative to the n atom in the c<^>n ligand so as to eliminate the possible resonance structure between enol and keto; and (ii) the subsequent functionalization with npc-based polyether dendrons to afford the first, second and third generation ir dendrimers (ir-g1b, ir-g2b and ir-g3b) with ease and high yields over 60%. all these dendritic complexes possess good thermal stability with decomposition temperatures higher than 380 degrees c and glass transition temperatures higher than 200 degrees c. in addition, with the growing generation number, the intermolecular interactions between emissive ir cores are expected to be effectively inhibited to avoid the luminescence quenching, which is confirmed from the blue-shifted emission peak and the enhanced lifetime of ir-g3b in the solid state. as a result, on going from ir-g1b to ir-g3b, the maximum luminous efficiency rises upward from 4.7 to 9.2 cd a(-1) for nondoped electrophosphorescent devices. further optimization by doping them into a dendritic h2 host leads to the improved luminous efficiencies as high as 20.0-25.2 cd a(-1). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-31 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/65151]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang,Yang,Wang,Shumeng,Shao,Shiyang,Ding,Junqiao,et al. Synthesis and properties of greenish-blue-emitting iridium dendrimers with N-phenylcarbazole-based polyether dendrons by a post-dendronization route[J]. dalton transactions,2015,44(3):1052-1059. |
| APA | Wang,Yang,Wang,Shumeng,Shao,Shiyang,Ding,Junqiao,Wang,Lixiang,Jing,Xiabin,&Wang,Fosong.(2015).Synthesis and properties of greenish-blue-emitting iridium dendrimers with N-phenylcarbazole-based polyether dendrons by a post-dendronization route.dalton transactions,44(3),1052-1059. |
| MLA | Wang,Yang,Wang,Shumeng,et al."Synthesis and properties of greenish-blue-emitting iridium dendrimers with N-phenylcarbazole-based polyether dendrons by a post-dendronization route".dalton transactions 44.3(2015):1052-1059. |
入库方式： OAI收割
来源：长春应用化学研究所
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